The consequence of hypoxia is entirely dependent on its intensity, duration, and also dependent on the age, gender, and health status of the victim. Our brain uses 20% of the oxygen we breathe, so I believe that the consequences of a prolonged and intense hypoxia may cause irreversible brain cells' damage, thus leading to a fatal outcome.
Cell injury refers to any damage or disruption to a cell's structure or function caused by various insults. Cell death is the irreversible cessation of cellular activities and functions, leading to the demise of the cell. Cell death can occur through different mechanisms, including apoptosis and necrosis.
Cells can break down due to various conditions, including lack of oxygen (hypoxia), nutrient deprivation, and exposure to toxins or pathogens. Physical stress, such as extreme temperature changes or mechanical injury, can also lead to cell damage. Additionally, genetic mutations and aging processes can impair cellular functions, resulting in breakdown. Overall, these factors disrupt homeostasis and lead to cell death through mechanisms like apoptosis or necrosis.
sickle cell anemia is releated with RBC . RBC will change in size ( microcytic ) and shap will change (sickling shap) that are cause in blokers vascular > then cause hypoxia in some organes that is cause tachycardia and shortness breath some time palor
Ischemic cell death is caused by a lack of oxygen and nutrients due to reduced blood supply. This can be a result of conditions such as blood vessel blockages or heart attacks. The lack of oxygen leads to cellular injury and ultimately cell death.
Tissue hypoxia is a condition where there is an inadequate supply of oxygen to the cells. This can lead to cell damage and dysfunction, impacting the normal functioning of tissues and organs. Conditions such as heart failure, respiratory diseases, and circulatory problems can contribute to tissue hypoxia.
Yes, an injury to a cell that cannot be stopped or recovered from is typically considered irreversible. This type of injury often results in cell death and permanent damage to tissue or organs.
A lack of oxygen in brain cells (hypoxia) can lead to cell damage and death due to the brain's high energy demands and sensitivity to oxygen deprivation. Without oxygen, brain cells are unable to produce energy through aerobic respiration, leading to cell dysfunction and ultimately cell death, which can result in neurological deficits or death.
Cell injury refers to any damage or disruption to a cell's structure or function caused by various insults. Cell death is the irreversible cessation of cellular activities and functions, leading to the demise of the cell. Cell death can occur through different mechanisms, including apoptosis and necrosis.
simply, Hypoxia is less oxygen supply to cell tissues, while the Ischemia is less blood supply to cell issues.
necrosis is death of cells with underlying/ or death of cells that cause inflammation. necrosis has to have an underlying injury. ischemia is decreased blood supply to tissues/ cells due to obstruction/ constriction of vasculature - indeed, this is an injury, and can lead to necrosis of cells if not resolved quickly! Note that apoptosis is programmed cell death - i.e. nucleus control is involved, and there is no inflammation - it is clean cell death! this is awesome.
necrosis
Damage at the cellular level - such as damage to mitochondria or enzymes, damage to the DNA or damage to the cell membrane. If the damage is serious enough, this will lead to either apoptosis (programmed, controlled cell-death), or necrosis (spontaneous, unplanned death).
sickle cell anemia is releated with RBC . RBC will change in size ( microcytic ) and shap will change (sickling shap) that are cause in blokers vascular > then cause hypoxia in some organes that is cause tachycardia and shortness breath some time palor
Hypoxia is the term used to describe a low level of oxygen in tissues. This can lead to cell damage and impaired organ function if left untreated. Oxygen therapy or addressing the underlying cause is typically required to treat hypoxia.
Hypoxia stimulates kidney cells to release erythropoietin, which is a hormone that regulates red blood cell production. Hypoxia is a condition where a part of the body or brain is not getting sufficient oxygen. When this condition occurs, there is an increase red blood cell production.
results in the cell death
1. too little oxygen in the inhaled air 2. inadequate ventilation (=the chest muscles and diaphragm moving air in and out of the lungs) 3. ventilation/perfusion (=blood flow) mismatch 4. Shunting (venous, unoxygenated blood flows through completely unventilated areas of the lung and mixes with oxygenated blood from functional areas of the lung going into the body - a severe form of no. 3, which doesn't improve much by giving oxygen) 5. inadequent diffusion of oxygen and carbon dioxide across the membrane between the air-filled alveoli and the blood (as in severe pneumonia or pulmonary edema) (6. "venous admixure effect" does not cause, but does worsen hypoxia - when the blood flowing into the lungs contains too much carbon dioxide (CO2) for the lungs to clear, as in acute heart failure or septic shock)